Hshway



Dec. 8,' 1925. j

D. R. B. SHESHARD FIsHwAY Filed Aug. 28. 1924 INVENTOR D. R B.Shankar-a' Egg L- BY ATTORNEY Patented Dec. 8, 1925.

-uNrrEn 'srarss DANIEL R. B. SHEPHARD, or SEATTLE, wAsHrNG'roiv.

FISI-IWAY.

`To all whom t may concern: f l

VBe it known that I, DANIELE. B. SHEP- HARD, a citizen of the United.`States, residing at Seattle, in the county of King and State ofWashington, have invented certain new and useful Improvements inFishways, of which the following is a specification.

This invention relates to fishways; and its object, generally, is theimprovement of devices of this character to render the same moreserviceable and adapted for use with dams of considerable elevation.

A further object is to provide a iishway composed of a plurality ofinclined ways or troughs disposed between a succession ofV Vresting andterminal `pools or stations associated in a manner to afford an easyascent for the fish.

More specific objects and advantages of ythe invention will appear inthe following description.

The invention consists of a fishway com-` prising a series, or asuccession of series, of

inclined troughs and basins, depending upon the height the fish are toascend and also with regard to the space available within vwhich afishway'may be built.

The invention further consists in the novel construction, adaptation,and combination of parts hereinafter described and claimed. In theaccompanying drawing, f Figure 1 is a vertical longitudinal section ofdevices embodying my invention shown applied; and Fig. 2 is a plan viewof the same. A

In said drawing, the reference numeral 5 represents a dam of suitableconstruction provided in a water course for confining 40 water at anelevation vabove the normal level of the stream as denoted bv 6.

The fishways are located at the down-' stream side of the dam wherebyish may ascend into the water confined by thedam at its upstream side. y

In carrying out the invention, I provide one or more water receptaclesas 7 71, two being shown 1n Fig. 1, hereinafter desig- -nated as restingpools, which are arranged in vertically spaced relation, and may bedisposed one above the other.

Located in horizontally spaced relation ,Application filed August 28,1924. Serial No. 7S-4,594.

from said resting 'pool or pools` and transversely of the-stream arevertically spaced -Water receptacles as 8, 81 and 82,' three being"shown, which are designated hereinafter .as feeding pools. Said feedingpools are of greater capacity, preferably, than Athe resting pools. p Yf rIhe pool structures maybe built of wood,

l metal, cement or other suitable material and f are supported bycribbing or framework 9 of known or suitable construction; or, as

illustrated Vwith respect to the pool 8, may be built or supporteddirectly upon the ground, indicated .by 91`where the"contour orformation of a stream bank permits. e,

lThe respective resting and feeding P00151l alternately',- are locatedAat progressively greater elevations, as yshown-a feeding pool, 8,islocated lowermost, then a resting pool 7 at a higher elevation,then asecondy feeding pool still higher and so on, alternately, to theuppermost pool which, in theillustrated embodiment, is shown as afeeding pool.' I ,Inclined water outlet troughs 101 and 1()2 areprovided for the upper feeding pools 81 and 82 and extend into theresting pools Zand 71, respectively,'at the next lower elevations.

The troughs above referred to extend into the vbodies of water withinthe resting poolsk 7 and 71. An inclined water outlet trough y1() forthelowermost feeding pool 8 hasv its discharge end 10 located'at adistance above the body of water 6 in the stream belowthe dam. Theresting :pools-7 `and 71 have eX- tending therefrom inclinedwater-outlet troughs 11 and 111 with their discharge ends 11a and 11blocated some distance above the water levels of the feeding pools 8 and81. Water is supplied mainly into the uppermost of thepools, as 82,through a chute 12 provided in the upper portion ofthe dam 5 and thelquantity of water passing 4therethrough is regulated by means of a gate13, or an equivalent.

For supplying water to yprotect iish in l ysaid feeding pools from theill effects of stagnant water in the event of an interrup-l tion orstoppage of water delivery through either the chute 12 orvany there isprovided an auxihary wate'rsupplying means. Such means, as,hereinysh'own,

of said troughs, i

V pools.

consists of a; stand pipe 14:` receiving' water from the upstream sideof the dam, and having valved outlets 15 for the delivery f of waterinto the respective feeding When the apparatus is operated as a fishladder to enable fish to pass the dam when traveling upstream forspawning or other purposes, water is supplied by means of the chute 12to the upper pool and thence ows through the successive troughs frompool to pool.

The troughs leading to and from each of the feeding pools are preferablycrossed as shown in Fig. 2, so that fish ascending the ishway enter thevrespective troughs from Vthe down stream sides of both the 'feeding andresting pools and are thus caused to take a general upstream directionwhen ascending from one pool to another.

The troughs 10, 11 and 111, into which the fish can reach only byjumping, are advantageously disposed at a smaller angle from thehorizontal than the troughs 101 and 102, into which the fish Dmay' swimfrom the respective resting pools.

In the use of the invention disclosed in the drawing, fish swimmingupstream in approaching the dam are attracted by the fall or water fromthe end 1()a of the trough 10 and then j uin'ps upwardly into the latterand thereupon utilizes the water traveling through the trough 10 as amedium to swim into. ther pool s.

The fish after remaining for a while in pool 8 will be attracted bywater falling thereinto from the trough 11 and to reach the latter mustjump thereinto and then propel itself by'swimming in order to reach thesecond pool 7 whence the iish swim through the flow or water withintrough 101. to reach the second feeding pool 8. Y

In the manner described above with reference to nsh ascending from pool8 to pool 81, the iish ascend from pool 81 to pool 82, the troughs 111and 102 being arranged substamiaiiy like um troughs 11 and 101 andfunction in a similar manner.

It is to be understood that all of the pools are designed for use asstations in which the iish rest in their ascent to an upstream spawningplace. Sonie of the pools, as 8-82,

are designed furthermore as stations in which the fish inay lreed whileresting and te this end the feeding pools should be of considerable sizeto accommodate manyy fish at a time. Y

An important characteristic of my 1nvention is in the use of assemblies,each assembly constituting a series of troughs and one or more pco'lsand arranging such assenblies in superimposed relations to a suiiicientnumber for attaining a required elevation v In the illustratedembodiment, the shway troughs 111, 102 and pools 71, 82-each seriesemploying a terminal pool such as 8, 81 or 82 and an auxiliary pool as 7or 71 as a basin'V wherein the fish may rest and turn intermediate therespective series, when the height of the same is considerable.

The construction and operation of the invention will, it is believed, beapparent from the foregoing description, although it is to be understoodthat, within the scope of the following claims, changes in the sizes,number or troughs and pools and arrangement or saine may be made to suitparticular installations. v

What I claim, is,-

1. In apparatus of the character described, a tishway comprisingtwowater receiving basins disposed at dinerent elevations and intransversely spaced relation, and two vertically inclined troughs forfish to ascend therein to the successive basins and from the lower tothe higher basin, said basin being arranged to have the upper end ofeach trough located further upstream than its lower end. l

2. In apparatus of the character described, a plurality of ishwaysdisposed in 1 vertically spaced relation each of said fishways having afeeding basin, and a watercarrying trough extending downwardlytherefrom, certain or the ishways having aV clined troughs extendingfrom the respec-` tive basins, the lower ends of the water dis--charging troughs oi the lOwerbaSin of each iishway being spacedvertically above r the Water level in the upper basin of the fishwaynext below.

Ll. In apparatus of the characterk described, a fishway having anelevated terminal basin', means to supply water thereto a second basinlocated at a lower elevation, an inclined water-carrying trough forconverging water from the upper to the lower basin, an inclined waterdischarging trough extending from the second named basin, each or saidtroughs sloping downwardly in the direction of the water current thereinthe outlet end of the second named trough beingl located atan elevationsuch that a fisli can only enter the same by jumping up-` the next lowerelevation and from the latter I v Wardly, and means to supply Water tothe to the basin next below Vand so onto the y terminal basin. lowest ofsaid basins, means to suppl;7 Water,l I 5. In apparatus of the characterdeto the uppermost basin, and means to supply scribed, 'the combinationof a plurality of Water independently of the rst`named isli feeding andresting basins disposed almeans to the feeding basins selectively. c.175

ternately7 at progressively greater eleva' Signedl at Seattle,Washington, this 6th tions, inclined troughs for discharging Waday ofAugust 1924. ter from the upper basin into the basin at p DANIEL R. B.SHEPI-IARD,A

